Ask question

Ask question

All categories

2 years ago

8

A student skipped a step when. he tried to convert 1020 seconds into hours, and he got the following incorrect result: 1 hour 10

20 seconds 17 hours 60 minutes What conversion ratio did he skip in this multiple-step conversion?

2 answers:

Ksju [112]2 years ago

7 0

one min over 60 seconds

Firlakuza [10]2 years ago

6 0

1020 s x (1hr/60min) x (1min/60s)

You might be interested in

Can u help me figure out this question plz

Dmitry [639]

Rectangle = 9*5=45
Triangle= 1/2 * 10 * 3 = 15
Add the two shapes: 45+15 = 60 sq units

4 0

2 years ago

Please help I’m really need the help (NO LINKS ) (NO LYING )

MAVERICK [17]

Answer:

for this you should use photomath all you do is take a picture of each problem and put the answer down

7 0

2 years ago

Read 2 more answers

LaDanian wants to write the fraction 4 / 6 as a sum of unit fractions. what expression should he write

julsineya [31]

He <span>wants to write the fraction 4 / 6 as a sum of unit fractions. It is written as follows:
</span>
1/6 +1/6 +1/6+ 1/6= 4/6.

A unit fraction has a numerator of 1 so since 4 is the numerator in 4/6 you would have to add 1/6 for four times.

Hope this answers the question. Have a nice day.

7 0

2 years ago

Beef hope me I need you to answer the question. What is n * 54 - 688-20 =???³

blsea [12.9K]

Answer:n= 1/3d - 2/3m

Step-by-step explanation:

d=2m+3n

Step 1: Flip the equation.

2m+3n=d

Step 2: Add -2m to both sides.

2m+3n+−2m=d+−2m

3n=d−2m

Step 3: Divide both sides by 3.

3n/3 = d-2m/3

Therefore

n= 1/3d - 2/3m

Hope this helps!

Plz name brainliest if possible.

1jaiz4 and 1 more users found this answer helpful

THANKS

1

5.0

(1 vote)

Add comment

Answer

0

maxtext75

Helping Hand

15 answers

26 people helped

Answer:

n = d - 2m

3*

Step-by-step explanation:

First we want to get n alone on one side, so we should subtract 2m from both side;

d = 2m + 3n

3n = d - 2m

Now to get n by itself, we need to divide by 3 from both sides;

3n = d - 2m

n = d - 2m

3*

*Pretend there is a fraction bar between d - 2m and 3

Step-by-step explanation:

7 0

2 years ago

Which statement is not true for a binomial distribution with n = 15 and p = 1/20 ? a) The standard deviation is 0.8441 b) The nu

malfutka [58]

Answer:

d) The highest probability occurs when x equals 0.7500

Step-by-step explanation:

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability, given by the following formula:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

The expected value of the binomial distribution is:

$E(X) = np$

The standard deviation of the binomial distribution is:

$\sqrt{V(X)} = \sqrt{np(1-p)}$

In this problem, we have that:

$n = 15, p = \frac{1}{20}$

a) The standard deviation is 0.8441

$\sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{15*0.05*0.95} = 0.8441$

This is correct

b) The number of trials is equal to 15

n is the number of trials and $n = 15$ . So this option is correct.

c) The probability that x equals 1 is 0.3658

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 1) = C_{15,1}.(0.05)^{1}.(0.95)^{14} = 0.3658$

This option is correct.

d) The highest probability occurs when x equals 0.7500

False. The number of sucesses is a discrete number, that is, 0, 1, 2,...,15. P(X = 0.75), for example, does not exist.

e) The mean equals 0.7500

$E(X) = np = 15*0.05 = 0.75$

This option is correct.

f) None of the above

d is false

3 0

2 years ago